JPH0510246Y2 - - Google Patents
Info
- Publication number
- JPH0510246Y2 JPH0510246Y2 JP5572285U JP5572285U JPH0510246Y2 JP H0510246 Y2 JPH0510246 Y2 JP H0510246Y2 JP 5572285 U JP5572285 U JP 5572285U JP 5572285 U JP5572285 U JP 5572285U JP H0510246 Y2 JPH0510246 Y2 JP H0510246Y2
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- signal
- focus
- disk
- control device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005070 sampling Methods 0.000 claims description 14
- 230000003287 optical effect Effects 0.000 claims description 6
- 230000003213 activating effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5572285U JPH0510246Y2 (enrdf_load_stackoverflow) | 1985-04-15 | 1985-04-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5572285U JPH0510246Y2 (enrdf_load_stackoverflow) | 1985-04-15 | 1985-04-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61174019U JPS61174019U (enrdf_load_stackoverflow) | 1986-10-29 |
| JPH0510246Y2 true JPH0510246Y2 (enrdf_load_stackoverflow) | 1993-03-12 |
Family
ID=30578663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5572285U Expired - Lifetime JPH0510246Y2 (enrdf_load_stackoverflow) | 1985-04-15 | 1985-04-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0510246Y2 (enrdf_load_stackoverflow) |
-
1985
- 1985-04-15 JP JP5572285U patent/JPH0510246Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61174019U (enrdf_load_stackoverflow) | 1986-10-29 |
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